Before we answer that, let’s look at what a firewall actually is. No, no actual flames of any kind are involved whatsoever.
A firewall is a barrier or “shield” intended to protect your PC, tablet, or phone from the data-based malware dangers that exist on the Internet. Data is exchanged between your computer and servers and routers in cyberspace, and firewalls monitor this data (sent in packets) to check whether they’re safe or not.
This is done by establishing whether the packets meet the rules that have been set up. Based on these rules, packets of data are accepted or rejected.
While most operating systems (desktop and mobile) feature a basic built-in firewall, the best results can usually be gained from using a dedicated firewall application, unless you know how to set up the built-in firewall properly and have the time to do so.
Firewall applications in security suites feature a host of automated tools that use whitelisting to check which of your applications should accept and reject data from the Internet — something that most users might find far too time consuming to do manually.
So it makes sense, now that it’s clear what a firewall is for, to have one installed and active. But just in case you’re still doubtful of the benefits…
Everyone who accesses the Internet needs a firewall of some kind. Without one, your computer will allow access to anyone who requests it and will open up your data to hackers more easily. The good news is that both Windows and Apple computers now come with built-in software firewalls (although the Mac’s firewall is turned off by default).
But businesses, especially those with multiple users or those that keep sensitive data, typically need firewalls that are more robust, more customizable, and offer better reporting than these consumer-grade alternatives.
Even a relatively small business engages in exponentially more interactions than an individual, with multiple users and workstations, and customers and suppliers. These days, most of those interactions are online and pose risks.
Not only are businesses exposed to riskier online interactions, the potential damage from each interaction is also greater. Businesses frequently keep everything from competitive bids and marketing plans to sensitive banking and customer data on their computers. When unprotected, the exposure is enormous.
Firewalls also allow computers outside of your network to securely connect to the servers that are inside your network. This is critical for employees who work remotely. It gives you the control to let the “good” connections in and keep the “bad” connections out.
Hardware firewalls must be compatible with your system and must be able to handle the throughput your business requires. They must be configured properly or they won’t work and can even stop your network from functioning entirely. You can use multiple hardware firewalls to take advantage of differing strengths and weaknesses.
Some industries (like medical and financial services) have specific regulatory requirements, so it’s important to consult your IT professional before choosing a firewall to make sure you’re not exposing your business to unnecessary liability.
It’s also important for you, or your IT service company, to constantly monitor the firewall to ensure it is up and working, as well as to ensure that it is regularly updated with security patches and virus definitions.
If you currently are not protected by a firewall or would like to inquire about an upgrade to your network infrastructure, please feel free to email (info@mytechexperts.com) or call (734-457-5000).